we had a few changes in our network and some hosts changed SNMP Interface details (IP and Port).
We were using port 160 before and now we are using 161 on many hosts. I updated the hosts in Zabbix webgui with the new configuration. Polling time is 300s.
SNMP is still Red, saying Timeout while connecting to "A.B.C.D:160".
I checked the items database table and found the correct configuration there (port 161). Tcpdump confirms that snmp requests are going out on the old port. I reloaded the server configuration, rebooted the server and reloaded the server configuration cache with no luck.
When I run snmpget in the console I can poll the items without problems.